ACACIA SEEDLINGS. Ill 



No. 4. Abruptly bipinnate, petiole 1*2 to 3*4 cm. long, 

 up to 3 mm. broad, with the midrib practically along the 

 lower margin, the upper margin nerve-like, often with a 

 gland towards the base; leaflets four to six pairs. 



Nos. 5 to 9. Rarely No. 5 may be bipinnate, but usually 

 Nos. 5 to 9 are falcate, linear phyllodes, with the midrib 

 usually just below the centre of the lamina, and a finer 

 vein above, starting from the base but not reaching the 

 apex. No. 5 varies from 2 to 7 cm. long, 3 to 7 mm. broad; 

 No. 6, 3 to 11 cm. long, 3 to 7 mm. broad; Nos. 7 to 9, 3 

 to 17 cm. long, 3 mm. to 1 cm. broad. 



Uninerves — (Racemosae). 



Acacia cultriformis A. Ounn. Seeds from Wyalong. 

 (Plate III, Numbers 1 to 3.) 



Seeds dull black, oblong to oblong-oval, about 5 mm. long, 

 2*5 to 3 mm. broad, 1 to 1*5 mm. thick. 



Hypocotyl terete, reddish, up to 1*8 cm. long, about 2 

 mm. thick at base, *7 to 1 mm. at apex. 



Cotyledons sessile, slightly auricled, oblong, apex rounded 

 5 to 6 mm. long, 3 to 4 mm. broad, upperside at first 

 brownish-yellow to brownish-red, becoming dark green, 

 underside reddish to brownish-red, with one to three longi- 

 tudinal nerves, soon becoming revolute and cylindrical. 



Stem terete, reddish-green to green, glabrous. First 

 internode '5 mm.; second 1 mm.; third 2-3 mm.; fourth 

 3 — 4 mm.; fifth 1 to 4 mm.; sixth and seventh 1 to 5 mm. 



Leaves — No. 1. Abruptly pinnate, petiole 3 to 5 mm., 

 glabrous; leaflets three to four pairs, oblong-acuminate, 

 the apical pair often obovate, 4 to 6 mm. long, 1 to 3 mm. 

 broad, upperside green, underside paler, rachis 3 to 6 mm., 

 with terminal seta ; stipules reduced to scales. 



No. 2. Abruptly bipinnate, petiole 4 mm. to 1 cm., 

 glabrous, with terminal seta; leaflets two to four pairs, 



